Grav Labs - 4" Frosted SpoonGrav Labs 4" Frosted Spoon Grav Labs have taken their classic spoon pipe design and traded out the clear glass for frosted and we think it looks sick! At 4 inches long it's a nice balance between being big enough for a good hit and still being able to fit in your pocket. There is a carb hole for clearing it out when you want and a recessed conical mouthpiece to act as an ash catcher, this is more than just a pretty piece of glasswork.